Command Line Reference Guide

1104 | Per-VLAN Spanning Tree plus (PVST+)
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Usage
Information
Once PVST+ is enabled, the device runs an STP instance for each VLAN it supports.
Related
Commands
show spanning-tree pvst
c e s
View the Per-VLAN Spanning Tree configuration.
Syntax
show spanning-tree pvst [vlan vlan-id] [brief] [guard]
Parameters
Defaults
No default behavior or values
Command Modes
EXEC
EXEC Privilege
Command
History
Example 1
(pvst brief)
FTOS#show spanning-tree pvst vlan 3 brief
VLAN 3
Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 4096, Address 0001.e801.6aa8
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 16384, Address 0001.e805.e306
Configured hello time 2, max age 20, forward delay 15
disable Disable PVST+.
show spanning-tree pvst Display the PVST+ configuration.
vlan vlan-id (OPTIONAL) Enter the keyword vlan followed by the VLAN ID.
Range: 1 to 4094
brief (OPTIONAL) Enter the keyword brief to view a synopsis of the PVST+ configuration information.
Interface
(OPTIONAL) Enter one of the interface keywords along with the slot/port information:
• For a Fast Ethernet interface, enter the keyword
FastEthernet followed by the slot/
port information.
• For a 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed by
the slot/port information.
• For a Port Channel interface, enter the keyword port-channel followed by a number:
C-Series and S-Series Range: 1-128
E-Series Range: 1 to 255 for TeraScale and 1 to 512 for ExaScale.
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet followed
by the slot/port information.
guard
(OPTIONAL) Enter the keyword guard to display the type of guard enabled on a PVST
interface and the current port state.
Version 8.4.2.1 The optional guard keyword was added.
Version 7.6.1.0 Support added for S-Series
Version 7.5.1.0 Support added for C-Series
Version 6.4.1.0 Expanded to display port error disable state (EDS) caused by loopback BPDU
inconsistency and Port VLAN ID inconsistency.
Version 6.2.1.1 Introduced